Circuit-closing clock



(No Model.)

H. S. PAGE. CIRCUIT OLUSING CLOCK.

Patented Apr. 4, 1893.

MIT (-1551 as.

UNITED STATES PATENT Enron.

HERBERT S. PAGE, OF MEDFORD, ASSIGNOR TO EDMUND D. SPEAR, OF

BOSTON, MASSACHUSETTS.

ClRCUlT-CLOSlNG CLOCK.

SPECIFICATION forming part of Letters Patent No. 494,966, dated April4:, 1893.

Application filed October 3, 1892.

To all whom it may concern:

Beitknowu that I, HERBERT S. PAGE, acitizen of the United Statea'and aresident of Medford, in the county of Middlesex and State ofMassachusetts, have invented new and useful Improvements in Clocks, ofwhich the following, taken in connection with the accompanying drawings,is a specification.

This invention has for its object to provide a novel, simple, andefficient clock for a closed electric circuit to sound an alarm, or openor close gates of any kind, or otherwise perform any work atpredetermined times for which the clock work mechanism may be sent.

To accomplish this object my invention involves the features ofconstruction and the combination or arrangement of devices hereinafterdescribed and claimed, reference being made to the accompanyingdrawings, in which,

Figure 1 represents an interior front view of the improved clockmechanism, the dial of which is shown as removed. Fig. 2 represents afront elevation of the clock and its connection to the battery and alarmor other devices in the circuit; and Fig. 3 represents a crosssection onthe line 33 shown in Fig. 1.

Similar letters refer to similar parts wherever they occur on thedifferent parts of the drawings.

A represents the inclosing case of the clock to which are attached in asuitable manner the binder posts a, a and a".

B is the frame of the clock mechanism, which frame is preferably made ofmetal and metallically connected by means of a wire 0 to the binderposts a as shown in Fig. 1.

D and D are main driver springs as usual by means of which rotary motionis imparted to the main gears and d and the respective hour, minute andsecond hands E, E, and e as is common in clock mechanisms.

f and g are spindles supported independent of the usual spindles of thehour, minute and second hands, and provided with gears f and g which arepositively geared in any suitable or well known manner to any of thegears in the clock movement so that said spindles rotate in oppositedirections; in practice I profor to gear each of the spindles f, g, insuch a Serial No. 447,612. (No model.)

manner as to move one half as fast as the spindle for the hour hand E,but this is not essential as if so desired such spindles f, g, may begeared so as to move equally with the hour hand E. On the spindle f isadj ustably secured a sleeve F provided with a cam-disk F having a toothor projection F" on its circumference as shown in Figs. 1 and 3.

F is a preferably notched metal bar or block which is held in contactwith the cam F by means of a spring F attached in one end to the frame Bas shown in Fig. 1. As the cam projection F passes by the lower end ofthe spring pressed bar F the lower end of the spring F is brought inmetallic contact with the insulated electrode f" which is secured in asuitable manner to a block or sheet H made of hard rubber, fiber, orother suitable insulating material which is secured to the frame B orother stationary part of the clock mechanism.

f is a wire leading from the insulated electrode f" to the binder post(6 as shown in Fig. 1; to the sleeve F is attached the hand or pointer fadapted to be adjusted in position relative to the graduated scale f onthe clock face I as shown in Fig. :2. Similar and corresponding parts G,G, G", G G g, g g and g are used in connection with the spindle g andthe binder post a" as shown in Fig. 1.

K is the battery, one pole of which is connected to the binder post to,its wire 6 and frame B by means of the wire 71; shown in Fig. 2.

L and L represent the electrical alarm or other electrically operateddevices which are connected to the respective binder posts a and a." bymeans of the wires Z and Z as shown in Fig. 2. The opposite poles of thealarms, &c., L, L, are connected together and to the battery K by meansof a wire Z also shown in Fig. 2. It will thus be seen that by adjustingand setting the respective hands f 9 and their cam disks F, G, for therespective times desired, the current through the respective alarms orother electrical devices .Will be closed as the cam-projections F, Gpass by the respective spring pressed blocks F G thus causing saidalarms to be actuated at any desired preconceived time or times.

Having thus fully described the nature, cony the binding post a, and anelectrical device L, a spring pressed block F carried by the frame inthe clock case, a spindle f supported independentof theusual handspindles of the clock,

and a sleeve F mounted on said spindle and c provided with a cam disk Fhaving a cam projection F, substantially as described.

2. The combination with a clock case A, a fraineB arrangedtherein andsupporting time mechanism which comprises main gears d, d and maindrivers D D, the spindles f and g supported independent of the usualhand spindies of the clock, rotated in opposite directions by the timemechanism, and provided respectively with sleeves Frand G having camdisks F and G provided with cam'projections F" and G", the insulatedelectrodes f" and g", the spring blocks F and G a battery in a circuitelectrically connected to the clock 3. The combination with a clockmechanism,

of spindles f and g supported independent of the usual hand spindles oftheclock mechanism and rotated in opposite directions thereby, thesleeves F and G mounted respectively on said oppositely rotatingspindles and provided with cam disks F and G having cam projections Fand G", the spring pressed blocks F and G arranged to be respectivelyoperated by said cam disks, the insulated electrodes f" and 9" adaptedto respectively make contact with the spring-pressed blocks, a batteryin the circuit electrically connected to the clock frame, andwiresleading from said battery to and through electrical devices and tothe insulated electrodes, substantially as described. I

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, on this 10th day of September, A.D. 1892.

' HERBERT S. PAGE.

Witnesses:

ALBAN ANDREN, GEORGE F. PIPER.

